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Welcome to the esp8266_at wiki!

More information in Espressif BBS

Note

• Here are two branch of esp8266_at，
  branch “master” is the source code which will be official released after test，
  branch “developing” is the source code in developing.
  Please submit your code on branch “developing” , and we will merge it to branch “master” if test pass.
• In folder "bin",
  sub-folder "newest" keeps the latest bin which just be generated,
  sub-folder "v0.20" keeps the official released bin of version 0.20.

Compile

Using command: ./gen_misc_plus.sh 1

Download

• boot.bin, downloads to flash 0x00000

• user1.bin, downloads to flash 0x01000

• blank.bin, downloads to flash 0x7E000

What is this ESP8266

• Its a wireless SoC
• It has GPIO, I2C, ADC, SPI, PWM and some more
• CPU default is in 80MHz, max can be 160MHz
• Its based on the RISC architecture
• The core is a 106micro Diamond Standard core (LX3) made by Tensilica
• The ESP8266 chip is made by Espressif
• Modules bearing this chip are made by various manufacturers

Features

• 802.11 b/g/n protocol
• Wi-Fi 2.4 GHz, support WPA/WPA2
• Super small module size (11.5mm x 11.5mm)
• Integrated 10-bit ADC
• Integrated TCP/IP protocol stack (ipv4 only at the moment)
• Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, and power management units
• +20dBm output power in 802.11b mode
• Supports antenna diversity
• Deep sleep power <10uA, Power down leakage current < 5uA
• Integrated low power 32-bit MCU
• SDIO 2.0, SPI, UART, I2C
• STBC, 1x1 MIMO, 2x1 MIMO
• A-MPDU & A-MSDU aggregation & 0.4μs guard interval
• Wake up and transmit packets in < 2ms
• Standby power consumption of < 1.0mW (DTIM3)
• Operating temperature range -40C ~ 125C

What is this ESP8266 AT

• ESP8266 connects to another MCU by UART
• The MCU send AT+CMD through UART to control ESP8266